重庆师范大学学报(自然科学版)
重慶師範大學學報(自然科學版)
중경사범대학학보(자연과학판)
JOURNAL OF CHONGQING NORMAL UNIVERSITY(NATURAL SCIENCE EDITION)
2011年
2期
11-18
,共8页
滞育终止%调节%温度%光周期%食料因子%激素
滯育終止%調節%溫度%光週期%食料因子%激素
체육종지%조절%온도%광주기%식료인자%격소
diapause termination%regulation%temperature%photoperiod%food%hormone
滞育是昆虫能够在不利环境条件下生存主要依赖的生理机制之一.滞育终止是滞育过程的特殊阶段,理解滞育终止的调控机制对于农业生态管理具有重要意义.目前已经有大量研究报道了滞育终止过程会受到许多环境和遗传因子调控,但相关研究的概括总结并不多.本文首先介绍了环境因子对滞育结束的影响,即低温或冷却有助于温带地区昆虫滞育的解除.光周期的改变可以终止大多数夏滞育,湿度和食料因子等也可以单独或协同解除滞育,然后分别从蜕皮激素、保幼激素、滞育激素等3种内分泌激素在滞育结束过程中发挥的内分泌调节作用做进一步讨论,最后从分子水平探讨了滞育结束过程中可能涉及到的分子机理以及在研究滞育结束过程中遇到的诸如滞育结束时间的判断等问题,本研究为今后在滞育结束的分子机制和昆虫的季节性调控方面做更深入的研究提供参考.
滯育是昆蟲能夠在不利環境條件下生存主要依賴的生理機製之一.滯育終止是滯育過程的特殊階段,理解滯育終止的調控機製對于農業生態管理具有重要意義.目前已經有大量研究報道瞭滯育終止過程會受到許多環境和遺傳因子調控,但相關研究的概括總結併不多.本文首先介紹瞭環境因子對滯育結束的影響,即低溫或冷卻有助于溫帶地區昆蟲滯育的解除.光週期的改變可以終止大多數夏滯育,濕度和食料因子等也可以單獨或協同解除滯育,然後分彆從蛻皮激素、保幼激素、滯育激素等3種內分泌激素在滯育結束過程中髮揮的內分泌調節作用做進一步討論,最後從分子水平探討瞭滯育結束過程中可能涉及到的分子機理以及在研究滯育結束過程中遇到的諸如滯育結束時間的判斷等問題,本研究為今後在滯育結束的分子機製和昆蟲的季節性調控方麵做更深入的研究提供參攷.
체육시곤충능구재불리배경조건하생존주요의뢰적생리궤제지일.체육종지시체육과정적특수계단,리해체육종지적조공궤제대우농업생태관리구유중요의의.목전이경유대량연구보도료체육종지과정회수도허다배경화유전인자조공,단상관연구적개괄총결병불다.본문수선개소료배경인자대체육결속적영향,즉저온혹냉각유조우온대지구곤충체육적해제.광주기적개변가이종지대다수하체육,습도화식료인자등야가이단독혹협동해제체육,연후분별종세피격소、보유격소、체육격소등3충내분비격소재체육결속과정중발휘적내분비조절작용주진일보토론,최후종분자수평탐토료체육결속과정중가능섭급도적분자궤리이급재연구체육결속과정중우도적제여체육결속시간적판단등문제,본연구위금후재체육결속적분자궤제화곤충적계절성조공방면주경심입적연구제공삼고.
Diapause is oue of the chief physiological mechanisms by which insects can survive under the adverse environmental conditions.The diapause termination is a special stage for diapause development and characterization.An understanding of the mechanisms underlying diapause termination is critical in the management of any agroecosystem.Numerous studies report that diapause termination can be influenced by many environmental and genetic factors,but not summarized.This paper firstly provides an overview of the effect of environmental factors on diapause termination,including the low temperature or chilling can prompt diapanse termination,the change of photoperiod also can terminate most of the summer diapause,humidity and food factors can separately or jointly terminate the summer or winter diapause in many insects.Besides the environmental effect,then a further discussion is made on the role that the three different kinds of endocrine hormones(ecdysteroids or ecdysteroid antagonist,juvenile hormones and diapause hormone)play in diapause regulation respectively.Finally,it is discussed that the molecular mechanisms which may be involved in the process of termination and the problems which had been encountered in the course of recent study on diapause termination,such as how to ascertain whether the diapause is terminated,with aim to offer a rich potential for contributing not only to an understanding of the molecular basis of insect seasonality but also to other related and timely topics in the agricultural and biomedical sciences.